Telescope mountings



SEAS ROOM Feb. 26, 1957 J. T. lVY

TELESCOPE MOUNTINGS Filed July 27, 1953 INVENTOR.

Jessie T. Ivy

United States Patent TELESCOPE MOUNTINGS Jessie T. Ivy, Seattle, Wash.

Application July 27, 1953, Serial No. 370,274

1 Claim. (CI. 33-50) This invention relates to telescope mountings. More particularly it has reference to mounting blocks designed for the functional support of a sighting telescope on a hunting rifle, or the like.

It is the principal object of this invention to provide telescope mounting blocks that embody novel features and improvements over those of my co-pending applications filed under Serial Nos. 252,730 and 245,801 on October 23, 1951 and September 10, 1951 respectively now Patents 2,645,855 and 2,629,176.

More specifically stated, the primary object of the present invention is to provide mounting blocks for the functional securing of a telescope upon a rifle barrel that are of maximum simplicity in their details of construction; that are relatively inexpensive to manufacture; that provide for making the necessary and desired sighting in adjustments of the telescope after securement of the blocks to the rifle and the securing of the telescope therein, and which blocks have sights associated therewith adapted to be used independently of and in lieu of those usually provided on the rifle.

Further objects and advantages of the present invention reside in the details of construction of the various parts of the blocks; in the assembled relationship of the parts and in their mode of securing the telescope and making sighting adjustments thereof as will hereinafter be fully described.

In accomplishing these and other objects of the invention, I have provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawings wherein:

Fig. 1 is a side view of a portion of a rifle on which a telescope is mounted by means of blocks embodying the improvements of the present invention therein.

Fig. 2 is a top view of the rear mounting block.

Fig. 3 is a vertical section taken on line 3-3 in Figs. 1 and 2.

Fig. 4 is a side view of the rear block with cap detached and a part of the base portion broken away for better showing of details.

Fig. 5 is an upper end view of the forward mounting block with the cap shown detached from the base portion.

Fig. 6 is a vertical section of the detached parts taken on line 6-6 in Fig. 5.

Fig. 7 is a side view of the forward block.

Fig. 8 is a fragmental view showing a sighting plate applied to the rear mounting block.

Referring more in detail to the drawings:

In Fig. 1, I have shown a part of an ordinary type of hunting rifle with a telescope fixed thereon by mounting blocks embodied by the present invention. In this view the barrel of the gun is designated generally by numeral 10 and its breach end portion is mounted in a metal frame member 12 which, in turn, is fixed in or to a stock 15. A typical telescope, as used by hunters, is designated by reference numeral 16 and this is functionally supported on the rifle by the present mounting blocks, referred to hereinafter, respectively, as the forward block" and the rearward bloc The forward block is designated in its entirety by numeral 20 and its details of construction are best shown in Figs. 5, 6 and 7. The rearward block is designated in its entirety by numeral 21, and its details of construction are best shown in Figs. 2, 3 and 4. These two blocks will now be individually described.

Block 21 comprises a base portion 21x and a telescope retaining cap 210. The base portion is formed with laterally spaced, downwardly directed supporting leg portions 22-22; these being formed with seats at their lower ends designed to fit snugly against the corresponding top and side surfaces of the rear end portion of the metal frame member 12 as shown in Fig. 3. These leg portions also are bored, as at 23, and attaching screws 24 are applied to the bores with heads seated therein and their shank portions threaded in the metal frame member 12 as understood by reference to Figs, 3 and 4, thus to rigidly and securely fix the base portion of the block 21 to the gun frame 12.

Removably fixed to the base portion 21x of the block is the telescope retaining cap 21c. This is removably fixed in place by four screws 29, that are directed downwardly through holes bored in its corner portions and threaded into the base position 21x of the block. These screws have counter sunk heads, as noted in Fig. 3 and preferably these heads are of Allen type.

The base member 21x and cap portion 21c of this block are formed with complemental, semi-cylindrical seats 32 axially aligned with the gun barrel; each seat being formed with a circumferentially directed channel 34 in which a slightly less than semicircular bushing 35 is container. The two bushings, as thus contained in the block are adapted to be fitted against the upper and lower surfaces of the barrel of the telescope 16 when applied thereto as in Fig. 1. Also, the channels 34 are of such depth that the complemental bushings 35 are adapted to be adjusted vertically therein, to limited extent, for slight raising or lowering that end of the telescope.

To elfect this vertical adjustment of the bushings and the rear end portion of the telescope as held thereby, I have provided in the block, the two horizontally directed adjusting screws 40-40 as show-n in Fig, 3. Each screw is threaded into a horizontal bore 41 that intersects the bushing containing channel 34 of that piece, thus to expose the bushing within the bore. The inner end portion of each screw is conically tapered and has a sloping side thereof, engaged with the corresponding bushing. Thus, it will be understood that by an inward adjustment of the lower screw 40 following a corresponding outward adjustment of the upper screw .40, the bushings will be vertically lifted to raise that end of the telescope accordingly. Likewise, an opposite adjustment of the screws 40-40 will effect a downward adjustment of the telescope.

The screws 40 likewise are of the Allen type and are countersunk within the block so as to avoid accidental catching on any outside object.

The leg portions 22-22 support the body portion of the block 21 above the frame member 12 and provide a sighting opening 42 between them as seen in Fig. 3. Hinged to the rear surface of the block 21x just above this sighting opening, as shown in Fig. 8, is a plate 44 formed with peepsight hole 45. This plate may be swung down to sighting position within the opening 42, or upwardly to leave the passage clear.

The forward mounting block 20 has laterally spaced leg portions 46-46 secured to the frame 12 by screws 24 applied in the same manner as the screws are applied to the block 21 previously described. The legs 46-46 support the block 20 above the frame and provide a sighting passage 50 between them, as seen in Fig. 6, and a sight 51 is fixed in the block and depends into the passage as shown. The upper portion of the block 20 is formed with a detachable side portion 20c, normally fixedly secured in place by four screws 52 applied through its corner portions as seen in Fig. 7. Formed in this removable cap portion and the opposite side portion of the block, are complemental, semi-cylindrical seats 53-53 extended in the direction of the barrel. Each of these seats is formed with a circumferentially directed channel 54. Contained in these channels are circularly curved bushings 55 adapted to be fitted to opposite sides of the barrel of the telescope when mounted as in Fig. 1. These bushings are movable in their channels for telescope adjustment. Lateral adjustment of the forward end of the telescope is here effected by the application of vertically directed adjusting screws 56-56 to the block to engage with the outer surfaces of these two bushings. These screws are like the screws 40-40 already described and have their inner tapered end portions engaged with the corresponding bushings in like manner to effect their adjustment.

To apply the present blocks to a gun, they are attached by means of the screws 24 to those forward and rearward portions of frame 12 that encircle the barrel. Then the cap portions 20c and 21c thereof are removed and the barrel of the telescope 16 is laid in place against the bushings 54 and 55 as indicated by the dotted line showing of the telescope barrel in Figs. 3 and 6. Then the caps 20c and 21c are replaced and secured. The telescope barrel will then be held at its forward and rearward ends between the pairs of bushings 35-35 and 55-55. Then by coordinated adjustment of the two tapered screws 40-40 and 56-56 as applied to the blocks, the forward end of the telescope barrel can be adjusted in a lateral direction, and the rearward end of the barrel can be adjusted vertically, thus to cause the telescope to conform to the sighting on an object as established by the gun sights.

If it is desired, the sights 44 and 51 as applied to the present blocks may be used, or they may be adjusted out of position and the gun sights used.

Having thus described my invention, what I claim as new therein and desire to secure by Letters Patent is:

'A telescope mounting comprising two base blocks adapted to be rigidly secured to a gun barrel in spaced relationship therealong, and. av capnremovably applied to each block; said base blocks and said caps having their juxtaposed surfaces formed with semi-cylindrical recesses of the same radius and axially coinciding with each other and together providing an opening through each block, and said openings of the two blocks being axially aligned 11d nteitpm ataintheharrel ortion.o-t. a. elgseop tl geghiwithwadjustingaclearance; said recesses being "circumferentially channeled and there being circularly curved bushings fitted in said channels for radial shifting therein and adapted to seat tightly against opposite sides of the telescope barrel as contained in the openings, and adjusti-ng screws threaded into the blocks and caps and engaged with the bushings for effecting their telescope adjusting movements; the cap of the first base block being applied to the top surface thereof and the adjusting screws being applied to the cap and base for effectingJLeLticaLad: justments of the telescope, and the cap of the second block z5' beiiig"applied-tofsidfifilfface thereof and the adjusting screws of that block being applied to cap and block References Cited in the file of this patent UNITED STATES PATENTS 739,366 Wann Sept. 22, 1903 2,237,395 Sweet Apr. 8, 1941 2,620,565 Boughton Dec. 9, 1952 2,629,176 Ivy Feb. 24, 1953 2,645,855 Ivy July 21, 1953 

